Resolved! The reading is very dense. I quickly found: 
my $file = 'output.xsl';
open my $out_fh, '>', $file;
print {$out_fh} $doc->toString;

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Thank you for all your help and your patience. I'm glad to be a new member of this community, and I promise to give back in the future just as you have given to me.

In reply to Re^10: LibXML setNodeName error by Anonymous Monk
in thread LibXML setNodeName error by geddie2001

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